Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 1, 2010
Patent Application Number
10576780
Date Filed
October 15, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
A pump system having a pump module (10) comprising a stator housing (28) with a chamber (30), a rotor (32) rotatably and axially slidably received in the chamber and comprising a first axial extension (46) with a liquid supply channel (50) and a second axial extension with a liquid supply channel (52), the first and second axial extensions having different diameters, and first and second sealing rings (54, 56), mounted around the first and second axial extensions.
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